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›› 2014, Vol. 36 ›› Issue (1): 35-46.

• 论文与报告 • 上一篇    下一篇

舟山崎头洋海域春秋季鱼类种类组成及数量分布

叶深1,俞存根1,周青松2,郑基1,李德伟1,何贤保1   

  1. 1. 浙江海洋学院水产学院
    2. 国家海洋局第二海洋研究所
  • 收稿日期:2013-11-21 修回日期:2013-12-26 出版日期:2014-02-25 发布日期:2014-03-10
  • 通讯作者: 俞存根
  • 基金资助:
    国家自然科学基金

Species composition and quantitative distribution of fishes in the Qitou Sea, Zhoushan

  • Received:2013-11-21 Revised:2013-12-26 Online:2014-02-25 Published:2014-03-10

摘要: 本研究利用2012年5月(春季)、10月(秋季)2个季度月的单船底拖网渔获的鱼类样品,对舟山渔场崎头洋的海域鱼类种类组成、区系特点及数量分布等进行了研究。结果如下:(1)共获得鱼类有50种,隶属于11目28科,以石首鱼科和虾虎鱼科的种类为最多,各有7种,分别占总种数的14.0 %;(2)根据适温性可其划分为暖水性和暖温性2种适温类型,以暖温性为主,有36种,占鱼类总种数的72.0 %;(3)春季主要集中在舟山本岛—小干岛海域,而秋季则集中在舟山本岛—小干岛海域以及穿山半岛—六横岛西南海域;(4)春季优势种有六丝钝尾虾虎鱼Amblychaeturichthys hexanema、带鱼Trichiurus haumela、花鲈Lateolabrax japonicus、棘头梅童鱼Collichthys lucidus、龙头鱼Harpodon nehereus等5种,而秋季优势种仅龙头鱼1种;(5)通过分析优势种的种群组成和底层温盐数据,发现该海域在春季可能为带鱼、棘头梅童鱼和花鲈等幼鱼的索饵场。

关键词: 崎头洋, 春秋季, 鱼类, 优势种, 种类组成, 数量分布, Qitou Sea, spring and autumn, fishes, dominant fishes, species composition, quantitative distribution

Abstract: Based on the demersal fishes that collected by bottom trawl in the Qitou Sea belong to Zhoushan Fishing Ground in May and October 2012, we analyzed fish species composition, fauna characters, and quantitative distribution in the survey area, and the result showed: (1) 50 species of fish were found and identified in spring and autumn, which belonged to 11 orders and 28 families. More species belonged to Sciaenidae and Gobiidae, and each has 7 species, accounting for 14.0 %. (2) In thermal adaptation, fishes in this area could be divided into two types, including warm-water species, warm-temperate species. The fishes which were caught mainly belonged to warm-temperate species, who had 36 species, accounting for 72.0 %. (3) Distribution of the catch rates showed that more fishes were caught between the zone of Zhoushan Island to Xiaogan Island sea area in spring; and in autumn the fishes were concentrated on two sea area including Zhoushan Island to Xiaogan Island sea area, and the northwestern of Chuanshan Peninsula to Liuheng Island sea area. (4) There were 5 dominant species in spring that were Amblychaeturichthys hexanema, Trichiurus haumela, Lateolabrax japonicus, Collichthys lucidus, Harpodon nehereus; but in autumn, Harpodon nehereus was the unique dominant specie. (5) Considering the salinity and the water temperature of the area surveyed in bottom, the population structure of the dominant species was analyzed. The result showed that there was probably a feeding ground to the adolescent fish such as Trichiurus haumela, Lateolabrax japonicus and Collichthys lucidus in spring.

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